Water Pump Kit with Base for MerCruiser R/MR/Alpha One gearcases. OEM: MercuryReplaces: Mercury 96148A8/46-44292A3For 1983-91 R/MR/Alpha One gearcases.also crosses with:Sierra: 18-3320Water Pump Kit with BaseSKU: 46-00048$50.00PriceQuantityAdd to Cart